Pith Number

pith:NW7M7CAM

pith:2013:NW7M7CAM2EJ4HXTKLBTIWOMYWT

not attested not anchored not stored refs pending

Seeing What You're Told: Sentence-Guided Activity Recognition In Video

Andrei Barbu, Jeffrey Mark Siskind, N. Siddharth

arxiv:1308.4189 v2 · 2013-08-19 · cs.CV · cs.AI · cs.CL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NW7M7CAM2EJ4HXTKLBTIWOMYWT}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:50:58.732261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6dbecf880cd113c3de6a58668b3998b4ce885ebe89dc1bd0fa930cd3bff026ee

Aliases

arxiv: 1308.4189 · arxiv_version: 1308.4189v2 · doi: 10.48550/arxiv.1308.4189 · pith_short_12: NW7M7CAM2EJ4 · pith_short_16: NW7M7CAM2EJ4HXTK · pith_short_8: NW7M7CAM

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/NW7M7CAM2EJ4HXTKLBTIWOMYWT \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6dbecf880cd113c3de6a58668b3998b4ce885ebe89dc1bd0fa930cd3bff026ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f673af980b17a07a6bd5bb29efb5fddbc0ab2dda490a4e5da5c9907fda72e36b",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-08-19T23:28:47Z",
    "title_canon_sha256": "bfb1af208a7a19363f68a93b92f1fde419f021e3b5c36b6f253fc77d2bb692de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4189",
    "kind": "arxiv",
    "version": 2
  }
}